Gpa validity

U can enter your name in revenue records, because the undeveided share of land is also transfer in your name and it's mention in Sale Deed so u enter your name in revenue records.   

thank you Bharat. 

Can the sons of land owner contest us saying that the GPA is void because of the death of landowner,our registration is also void?

Dear friend, I am agree with bharat kumar on first enquiry, at your second enquiry you need not to be worry because GPA was with the developer not with you,you have taken possession during life time of landlord undisputedly,therefore they may harass you but they can't take any legal action against you,you can lodge complain against them.